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  Subjects -> METEOROLOGY (Total: 113 journals)
Showing 1 - 36 of 36 Journals sorted alphabetically
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 4)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 45)
Advances in Climate Change Research     Open Access   (Followers: 39)
Advances in Meteorology     Open Access   (Followers: 28)
Advances in Statistical Climatology, Meteorology and Oceanography     Open Access   (Followers: 10)
Aeolian Research     Hybrid Journal   (Followers: 6)
Agricultural and Forest Meteorology     Hybrid Journal   (Followers: 20)
American Journal of Climate Change     Open Access   (Followers: 34)
Atmósfera     Open Access   (Followers: 3)
Atmosphere     Open Access   (Followers: 29)
Atmosphere-Ocean     Full-text available via subscription   (Followers: 16)
Atmospheric and Oceanic Science Letters     Open Access   (Followers: 13)
Atmospheric Chemistry and Physics (ACP)     Open Access   (Followers: 48)
Atmospheric Chemistry and Physics Discussions (ACPD)     Open Access   (Followers: 16)
Atmospheric Environment     Hybrid Journal   (Followers: 75)
Atmospheric Environment : X     Open Access   (Followers: 3)
Atmospheric Research     Hybrid Journal   (Followers: 71)
Atmospheric Science Letters     Open Access   (Followers: 40)
Boundary-Layer Meteorology     Hybrid Journal   (Followers: 32)
Bulletin of Atmospheric Science and Technology     Hybrid Journal   (Followers: 5)
Bulletin of the American Meteorological Society     Open Access   (Followers: 51)
Carbon Balance and Management     Open Access   (Followers: 5)
Ciencia, Ambiente y Clima     Open Access   (Followers: 3)
Climate     Open Access   (Followers: 6)
Climate and Energy     Full-text available via subscription   (Followers: 7)
Climate Change Economics     Hybrid Journal   (Followers: 33)
Climate Change Responses     Open Access   (Followers: 18)
Climate Dynamics     Hybrid Journal   (Followers: 44)
Climate of the Past (CP)     Open Access   (Followers: 5)
Climate of the Past Discussions (CPD)     Open Access  
Climate Policy     Hybrid Journal   (Followers: 51)
Climate Research     Hybrid Journal   (Followers: 6)
Climate Resilience and Sustainability     Open Access   (Followers: 21)
Climate Risk Management     Open Access   (Followers: 7)
Climate Services     Open Access   (Followers: 3)
Climatic Change     Open Access   (Followers: 68)
Current Climate Change Reports     Hybrid Journal   (Followers: 10)
Developments in Atmospheric Science     Full-text available via subscription   (Followers: 31)
Dynamics and Statistics of the Climate System     Open Access   (Followers: 5)
Dynamics of Atmospheres and Oceans     Hybrid Journal   (Followers: 19)
Earth Perspectives - Transdisciplinarity Enabled     Open Access  
Economics of Disasters and Climate Change     Hybrid Journal   (Followers: 9)
Energy & Environment     Hybrid Journal   (Followers: 24)
Environmental and Climate Technologies     Open Access   (Followers: 4)
Environmental Dynamics and Global Climate Change     Open Access   (Followers: 17)
Frontiers in Climate     Open Access   (Followers: 3)
GeoHazards     Open Access   (Followers: 2)
Global Meteorology     Open Access   (Followers: 18)
International Journal of Atmospheric Sciences     Open Access   (Followers: 23)
International Journal of Biometeorology     Hybrid Journal   (Followers: 1)
International Journal of Climate Change Strategies and Management     Hybrid Journal   (Followers: 27)
International Journal of Climatology     Hybrid Journal   (Followers: 30)
International Journal of Environment and Climate Change     Open Access   (Followers: 12)
International Journal of Image and Data Fusion     Hybrid Journal   (Followers: 2)
Journal of Agricultural Meteorology     Open Access  
Journal of Applied Meteorology and Climatology     Hybrid Journal   (Followers: 36)
Journal of Atmospheric and Oceanic Technology     Hybrid Journal   (Followers: 34)
Journal of Atmospheric and Solar-Terrestrial Physics     Hybrid Journal   (Followers: 210)
Journal of Atmospheric Chemistry     Hybrid Journal   (Followers: 22)
Journal of Climate     Hybrid Journal   (Followers: 57)
Journal of Climate Change     Full-text available via subscription   (Followers: 16)
Journal of Climatology     Open Access   (Followers: 3)
Journal of Hydrology and Meteorology     Open Access   (Followers: 36)
Journal of Hydrometeorology     Hybrid Journal   (Followers: 11)
Journal of Integrative Environmental Sciences     Hybrid Journal   (Followers: 4)
Journal of Meteorological Research     Full-text available via subscription   (Followers: 1)
Journal of Meteorology and Climate Science     Full-text available via subscription   (Followers: 17)
Journal of Space Weather and Space Climate     Open Access   (Followers: 28)
Journal of the Atmospheric Sciences     Hybrid Journal   (Followers: 84)
Journal of the Meteorological Society of Japan     Partially Free   (Followers: 6)
Journal of Weather Modification     Full-text available via subscription   (Followers: 2)
Large Marine Ecosystems     Full-text available via subscription   (Followers: 1)
Mediterranean Marine Science     Open Access   (Followers: 1)
Meteorologica     Open Access   (Followers: 2)
Meteorological Applications     Hybrid Journal   (Followers: 4)
Meteorological Monographs     Hybrid Journal   (Followers: 2)
Meteorologische Zeitschrift     Full-text available via subscription   (Followers: 3)
Meteorology and Atmospheric Physics     Hybrid Journal   (Followers: 27)
Mètode Science Studies Journal : Annual Review     Open Access  
Michigan Journal of Sustainability     Open Access   (Followers: 1)
Modeling Earth Systems and Environment     Hybrid Journal   (Followers: 1)
Monthly Notices of the Royal Astronomical Society     Hybrid Journal   (Followers: 16)
Monthly Weather Review     Hybrid Journal   (Followers: 33)
Nature Climate Change     Full-text available via subscription   (Followers: 144)
Nature Reports Climate Change     Full-text available via subscription   (Followers: 39)
Nīvār     Open Access  
npj Climate and Atmospheric Science     Open Access   (Followers: 6)
Open Atmospheric Science Journal     Open Access   (Followers: 4)
Open Journal of Modern Hydrology     Open Access   (Followers: 7)
Revista Brasileira de Meteorologia     Open Access  
Revista Iberoamericana de Bioeconomía y Cambio Climático     Open Access  
Russian Meteorology and Hydrology     Hybrid Journal   (Followers: 3)
Space Weather     Full-text available via subscription   (Followers: 25)
Studia Geophysica et Geodaetica     Hybrid Journal  
Tellus A     Open Access   (Followers: 22)
Tellus B     Open Access   (Followers: 21)
The Cryosphere (TC)     Open Access   (Followers: 6)
The Quarterly Journal of the Royal Meteorological Society     Hybrid Journal   (Followers: 28)
Theoretical and Applied Climatology     Hybrid Journal   (Followers: 13)
Tropical Cyclone Research and Review     Open Access  
Urban Climate     Hybrid Journal   (Followers: 4)
Weather     Hybrid Journal   (Followers: 18)
Weather and Climate Dynamics     Open Access  
Weather and Climate Extremes     Open Access   (Followers: 16)
Weather and Forecasting     Hybrid Journal   (Followers: 27)
Weatherwise     Hybrid Journal   (Followers: 4)
气候与环境研究     Full-text available via subscription   (Followers: 1)

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Similar Journals
Journal Cover
Energy & Environment
Journal Prestige (SJR): 0.258
Citation Impact (citeScore): 1
Number of Followers: 24  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0958-305X - ISSN (Online) 2048-4070
Published by Sage Publications Homepage  [1166 journals]
  • The nexus between financial development and energy consumption: Estimating
           the role of foreign direct investment, economic growth and urbanization

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      Authors: Jaleel Ahmed, Shuja ur Rehman, Zaid Zuhaira, Shoaib Nisar
      Abstract: Energy & Environment, Ahead of Print.
      This study examines the impact of financial development on energy consumption for a wide array of countries. The estimators used for financial development are foreign direct investment, economic growth and urbanization. The study employed a panel data regression on 136 countries with time frame of years 1990 to 2019. The model in this study deploys system GMM technique to estimate the model. The results show that financial development has a significant negative impact on energy consumption overall. Foreign direct investment and urbanization has significant impact on energy consumption. Also, economic growth positive impact on energy consumption its mean that economic growth promotes energy consumption. When dividing further the sample into different groups of regions such as Asian, European, African, North/Latin American and Caribbean countries then mixed results related to the nexus between financial development and energy consumption with respect to economic growth, urbanization and foreign direct investment. The policymakers in these different groups of countries must balance the relationship between energy supply and demand to achieving the sustainable economic development.
      Citation: Energy & Environment
      PubDate: 2021-10-12T04:07:58Z
      DOI: 10.1177/0958305X211045375
       
  • Energy efficiency cycle and the export-oriented economic growth style in
           China

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      Authors: Pengfei Sheng, Haohao Wei, Chunjie Lou
      Abstract: Energy & Environment, Ahead of Print.
      Few studies addressed the relationship between the energy efficiency cycle and the export-oriented economic growth style, and our work aimed to contribute this research in the literature using China's dataset during 1985–2018. Results of the autoregressive-distributed-lag model there were two cycles in China's energy efficiency, and the first ranged from 1989 to 2002 while the second was over the period 2003–2012. Meanwhile, the estimations suggested that a 1% export increase was linked to a 0.107% increase in energy efficiency in the long run. However, the export was significantly and negatively associated with the short-run fluctuation of energy efficiency. As a result, the statistical simulation confirmed that export would raise the fluctuation range of energy efficiency.
      Citation: Energy & Environment
      PubDate: 2021-10-12T04:07:18Z
      DOI: 10.1177/0958305X211045374
       
  • Moving toward sustainable environment: The effects of hydropower industry
           on water quality in EU economies

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      Authors: Mohd Alsaleh, AS Abdul-Rahim
      Abstract: Energy & Environment, Ahead of Print.
      This research investigates the effect of hydropower yields on water quality in European Union participating nations from 1990 to 2019. Integrating the panel fully modified ordinary least squares, the outcomes show that water quality degradation increase with a rise in hydropower production growth. Similarly, fossil fuel, economic growth and population density are found to be increasing water resource pollution. While institutional quality is found to decrease water quality degradation and water resource pollution. The finding implies that water quality degradation in the EU27 region can be effectively increased by increasing the amount of hydropower production in sustainability procedures. This will increasingly influence the status of climate change. The evaluated outcomes are observed to be valid as they were authenticated with the panel dynamic ordinary least square and pooled ordinary least square. Therefore, it attests to the paper's uniqueness, input to the body of knowledge and novelty. The research suggests that for EU27 nations have to enhance the role of the hydropower industry in their energy mix to achieve Energy Union objectives taking into consideration the water resources pollution factor. Authorities in these nations must also focus more on investing in the growth of the hydropower industry to add more to its production and availability of renewable energy and decrease water quality degradation. The government of these nations can similarly stress the competence and sustainability of hydropower production and water resource conservation to reach energy security and reduce water quality degradation.
      Citation: Energy & Environment
      PubDate: 2021-10-12T03:21:44Z
      DOI: 10.1177/0958305X211039452
       
  • Comparative exergy and energy assessment of a biogas plant with biological
           purification process: A multigeneration system

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      Authors: Mahmood Mahmoodi-Eshkaftaki, Hossein Rahmanian-Koushkaki, Mohammad Rafie Rafiee
      Abstract: Energy & Environment, Ahead of Print.
      The improved systems of biogas production usually increase the energy consumption of biogas plants. Therefore, it is very important to determine an appropriate improvement system to increase plant efficiency. For this purpose, a biogas plant with a biological self-purification system was energetically and exergetically analyzed, and its performance was compared with that of a base plant. To keep the temperature of digesters up to 310.2 K, a solar water heater was used. It was able to maintain a high level of efficiency for both plants. The energy analysis of the plants indicated that the overall energetic efficiency of both plants was very close. The exergy analysis of the plants showed that the overall exergetic efficiency of the self-purification biogas plant (76.24%) was higher than that of the base plant (66.78%). This is due to the fact that the total exergy destruction rate of the self-purification plant was lower than that of the base plant and the exergy rate of biogas output of the self-purification plant was higher than that of the base plant. The exergy analyses of both plant components showed that although the highest exergy destruction rates were attributed to the principle digester and separation unit, they showed the highest exergetic improvement potential rates. These results confirm that the digesters in biogas plants have a great potential to be improved exergetically, and the self-purification system is a suitable improvement system to increase the plant efficiency exergetically.
      Citation: Energy & Environment
      PubDate: 2021-09-30T10:56:43Z
      DOI: 10.1177/0958305X211041722
       
  • Stackelberg game based co-firing biomass with coal under carbon
           cap-and-trade regulation

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      Authors: Zongtang Xie, Hongxia Liu
      Abstract: Energy & Environment, Ahead of Print.
      Coal-fired power industry is under enormous pressure to accomplish carbon emission reduction targets. This paper proposes a bi-level multi-objective model for co-firing biomass with coal under carbon cap-and-trade regulation which considers a leader-follower Stackelberg game between the authority and the coal-fired power plants. The upper level regards social welfare maximization and allocation satisfaction maximization as its multiple objectives, while the lower level attempts to maximize the profits of each coal-fired power plant. The inherent uncertainty prompts the motivation for employing fuzzy set theory to characterize the uncertain parameters and determine their exact values. A case study from Shandong Province, China is provided to demonstrate the practicality and efficiency of the optimization model. [math]-constraint method and interactive algorithm are used to solve the model, and furthermore the solutions associated with different free carbon emission quota levels and minimal allocation satisfactions have been generated to examine the influences. Based on the analysis and discussion, the methodology can meet the carbon emission reduction goals and transit to a lower-carbon power generation. It also assists the decision makers to develop desired quota allocation strategy in accordance with their attitudes and actual conditions.
      Citation: Energy & Environment
      PubDate: 2021-09-30T04:15:35Z
      DOI: 10.1177/0958305X211041522
       
  • Effect of addition of plastic pyrolytic oil and waste cooking oil
           biodiesel in palm oil biodiesel–commercial diesel blends on diesel
           engine performance, emission, and lubricity

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      Authors: Muhamad SN Awang, Nurin WM Zulkifli, Muhammad M Abbas, Syahir A Zulkifli, Mohd NAM Yusoff, Muhammad H Ahmad, Muhammad AH Lokman NolHakim, Wan MA Wan Daud
      Abstract: Energy & Environment, Ahead of Print.
      The main purposes of this research were to study the diesel engines' performance and emission characteristics of quaternary fuels, as well as to analyze their tribological properties. The quaternary comprised waste plastic pyrolysis oil, waste cooking oil biodiesel, palm oil biodiesel, and commercial diesel. Their compositions were analyzed by gas chromatography and mass spectrometry. By using mechanical stirring, four quaternary fuels with different compositions were prepared. Because Malaysia is expected to implement B30 (30% palm oil biodiesel content in diesel) in 2025, B30a (30% palm oil biodiesel and 70% commercial diesel) mixture was prepared as a reference fuel. In total, 5%, 10%, and 15% of each waste plastic pyrolysis oil and waste cooking oil biodiesel were mixed with palm oil biodiesel –commercial diesel mixture to improve fuel characteristics, engine performance, and emission parameters. The palm oil biodiesel of the quaternary fuel mixture was kept constant at 10%. The results were compared with B30a fuel and B10 (10% for palm oil biodiesel and 90% for diesel; commercial diesel). The findings indicated that compared with B30a fuel, the brake power and brake thermal efficiency of all quaternary fuel mixtures were increased by up to 2.78% and 9.81%, respectively. Compared with B30a, all quaternary fuels also showed up to a 6.31% reduction in brake-specific fuel consumption. Compared with B30a, the maximum carbon monoxide and carbon dioxide emissions of B40 (60% commercial diesel, 10% palm oil biodiesel, 15% waste plastic pyrolysis oil and 15% waste cooking oil biodiesel) quaternary fuel were reduced by 19.66% and 4.16%, respectively. The B20 (80% commercial diesel, 10% palm oil biodiesel, 5% waste plastic pyrolysis oil and 5% waste cooking oil biodiesel) quaternary blend showed a maximum reduction of 41.86% in hydrocarbon emissions collated to B30a. Compared with B10, the average coefficient of friction of the quaternary fuel mixture of B40, B30b (70% commercial diesel, 10% palm oil biodiesel, 10% waste plastic pyrolysis oil and 10% waste cooking oil biodiesel), and B20 were reduced by 3.01%, 1.20%, and 0.23%, respectively. Therefore, the quaternary blends show excellent utilization potential in diesel engine performance.
      Citation: Energy & Environment
      PubDate: 2021-09-28T09:48:42Z
      DOI: 10.1177/0958305X211034822
       
  • Moving toward a green revolution in Japan: Symmetric and asymmetric
           relationships among clean energy technology development investments,
           economic growth, and CO2 emissions

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      Authors: Zahoor Ahmed, Michael Cary, Sajid Ali, Muntasir Murshed, Hamid Ullah, Haider Mahmood
      Abstract: Energy & Environment, Ahead of Print.
      A revolution in the energy sector is crucial for achieving environmental sustainability since almost three-fourth of global carbon dioxide emissions is generated from the energy sector. It is believed that combustion of unclean energy resources is the major contributor to the multifaceted environmental adversities experienced across the globe. Thus, the development of clean energy technologies, to elevate their shares in the global energy mix, is deemed necessary to reinstate environmental well-being worldwide. Against this background, this study aims to explore the symmetric and asymmetric impacts of public research and development investments for nuclear and renewable energy development and economic growth on carbon dioxide emissions in the context of Japan over the 1974–2017 period. As opposed to the conventional approaches, this study contributes to the literature by specifically scrutinizing the environmental effects associated with public investments in clean energy development projects; whereas the majority of the preceding studies have either considered the environmental impacts associated with the overall research and development investments in the energy sector or that made by firms in general. However, evaluating the effects of such investments for clean energy development is more appropriate for policy-making purposes. The results from both the symmetric and asymmetric analyses reveal that higher public investments in clean energy research and development-oriented projects help to curb carbon dioxide emissions in Japan. Besides, such investments for nuclear energy development are evidenced to be relatively more effective in facilitating the nation's carbon emission-abating agenda. In contrast, economic growth in Japan is evidenced to trigger higher carbon dioxide emissions. In line with these key findings, this study offers several policy-level suggestions in respect of undergoing clean energy transition and achieving environmental sustainability in Japan.
      Citation: Energy & Environment
      PubDate: 2021-09-22T11:33:21Z
      DOI: 10.1177/0958305X211041780
       
  • Optimum sizing and simulation of hybrid renewable energy system for remote
           area

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      Authors: Animesh Masih, HK Verma
      Abstract: Energy & Environment, Ahead of Print.
      In current scenario, people tend to move towards outskirts and like to settle in places that are close to nature. But, due to urban lifestyle and to fulfill the basic needs, demand of electricity remains the same as in urban areas. This demand of electricity can be only fulfilled by using hybrid renewable energy resources, which is easily available in outskirts. Renewable energy resources are unreliable and more expensive. Researchers are working to make, it more reliable and economic in terms of utilization. This article proposes a metaheuristic grasshopper optimization algorithm (GOA) for the optimal sizing of hybrid PV/wind/battery energy system located in remote areas. The proposed algorithm finds the optimal sizing and configuration of remote village load demand that includes house electricity and agriculture. The optimization problem is solved by minimization of total system cost at a desirable level of loss of power supply’s reliability index (LPSRI). The results of GOA are compared with particle swarm optimization (PSO), genetic algorithm (GA) and hybrid optimization of multiple energy resources (HOMER) software. In addition, results are also validated by modeling and simulation of the hybrid energy system and its configurations at different weather conditions-based results. Hybrid PV/wind/battery is found as an optimal system at remote areas and sizing are[math] with cost of energy (COE) (0.3473$/kWh) and loss of power supplies reliability index (LPSRI) (0%). It is clear from the results that GOA based methods are more efficient for selection of optimal energy system configuration as compared to others algorithms.
      Citation: Energy & Environment
      PubDate: 2021-09-20T12:12:55Z
      DOI: 10.1177/0958305X211030112
       
  • Environmental pollution and population distribution among districts and
           counties: Evidence from prefecture-level cities in China

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      Authors: Yongpei Wang, Jieru Yang, Jinwei Chen, Qian Zhang
      Abstract: Energy & Environment, Ahead of Print.
      China's unprecedented urbanization has come at the cost of environmental degradation, which increasingly appears to be holding back migration to bustling municipal districts. Escaping from Beijing, Shanghai and Guangzhou has become a hot topic in recent years. But in fact, small and medium-sized cities also show signs of population decentralization. The aim of this paper is to reveal the impact of environmental pollution on the decentralization of urban population in China. Based on the panel data of over 227 prefecture-level cities and municipalities directly under the central government, the sensitivity of municipal population to PM2.5 concentration was empirically studied. The results showed that PM2.5 concentrations generally had the effect of driving away the population of municipal districts, but this was most pronounced in first-tier and fourth-tier cities rather than second-tier and third-tier cities. The panel quantile estimates further confirm this finding that megacities and small and micro cities rather than small and medium-sized cities are more vulnerable to environmental pollution, which is a reminder that Chinese policymakers must not focus on the environmental problems of megacities alone, but must prevent environmental degradation from hollowing out the population of small cities and towns.
      Citation: Energy & Environment
      PubDate: 2021-09-20T09:50:02Z
      DOI: 10.1177/0958305X211041519
       
  • Pakistan's energy sector—from a power outage to sustainable supply.
           Examining the role of China–Pakistan economic corridor

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      Authors: Wenqi Duan, Adnan Khurshid, Naila Nazir, Adrian Cantemir Calin
      Abstract: Energy & Environment, Ahead of Print.
      The industrial development alongside inadequate planning in the energy sector put demand-side pressure on Pakistan's energy demand. Similarly, the excessive dependency on fossil fuels has an ecological footprint. Moreover, the abuse of energy tariff subsidies and deficits had a detrimental effect on department earnings, limiting the sector's emergence and intensifying its crisis. This research examines the electric demand and supply imbalance in the context of the China–Pakistan economic corridor investments using the system dynamics modeling approach, highlights the renewable resources, and discusses the hurdles in the way of green conversion. Moreover, the study forecasts the production capacity, electric demand, and supply up to 2040. The results show that China–Pakistan economic corridor investments will uplift the production capacity up to 12.9%, whereas the average production will reach 15.8%, variables that were 5% and 4.8% before China–Pakistan economic corridor. As a result, the energy sector will be able to meet the energy demand after 2021. However, the current investment in the renewable industry will not help in achieving policy targets. The study provides targeted implications to overcome potential barriers to the green path.
      Citation: Energy & Environment
      PubDate: 2021-09-17T10:27:09Z
      DOI: 10.1177/0958305X211044785
       
  • How can new energy vehicles affect air quality in China'— From the
           perspective of crude oil price

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      Authors: Qiu-Su Wang, Chi-Wei Su, Yu-Fei Hua, Muhammad Umar
      Abstract: Energy & Environment, Ahead of Print.
      From the perspective of crude oil price, this paper investigates the effects of new energy vehicles on air quality by applying a time-varying parameter–stochastic volatility–vector autoregression model. NEVs benefits from the continuous adjustment and improvement of subsidy standards by the Chinese government, and the share of new energy vehicles in the market has been continuously improved. The empirical results show that the increase in new energy vehicles can reduce PM2.5 emissions, which is also consistent with the energy and environment theoretical model, and replacing traditional energy with new energy is helpful for controlling environmental pollution. Oil price has a direct negative impact on PM2.5 concentration, and the influence of new energy vehicles on air quality is also regulated by changes in oil price. A high oil price leads to an increase in driving costs, and consumers are more inclined to purchase new energy vehicles, which achieves the purpose of improving air quality to a certain extent. To improve the air quality, the relevant departments should adjust the subsidy policy of new energy vehicles according to the change in oil price and appropriately increase gasoline or diesel consumption taxes to provide development space for the new energy vehicle market.
      Citation: Energy & Environment
      PubDate: 2021-09-17T10:25:53Z
      DOI: 10.1177/0958305X211044388
       
  • Experimental investigation of designed solar parabolic concentrator based
           desalination system for textile industry wastewater treatment

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      Authors: Atin K Pathak, VV Tyagi, Sanjeev Anand, Richa Kothari
      Abstract: Energy & Environment, Ahead of Print.
      The escalation in demand for textile products increased the use of fresh water and treatment of wastewater; which escalates the search for suitable and energy-efficient technology for wastewater treatment. Solar assisted technology (i.e. solar desalination) for the textile industry wastewater treatment is proved to be an affordable technology. The only drawback of solar desalination is its low productivity which is the major hindrance in the global acceptance of the system. In the present study, an ingenious improvement in form of a parabolic concentrator-based solar desalination system (PCB-SDS) is designed to overcome low productivity, and the simultaneous use of source textile industry wastewater for its treatment makes this study more realistic. The performance of the designed system was examined for three different brine depths i.e. 20%, 40%, and 60% for two different processing step i.e. Dyeing and Degumming. System performance was evaluated in terms of energetic, exergetic, pollutant removal, and economic analysis. The maximum output of the system was found to be around 7440 and 8330 mL/day on clear sunny days with textile dyeing wastewater (TDyWW) and textile degumming wastewater (TDgWW) at 60% depth respectively. Daily average energy and exergy efficiency of system varies in the range 39.8–51.9 and 3.6–4.8% respectively. The degumming wastewater shows 85% COD removal, whereas, around 90% of TDS and hardness removal was also recorded. The dyeing processed wastewater showed 80% COD removal efficiency, ≅90% TDS, and hardness removal. The cost per liter of distillate output produced from designed PCB-SDS was found to be 0.014 $/L.
      Citation: Energy & Environment
      PubDate: 2021-09-15T07:13:55Z
      DOI: 10.1177/0958305X211027335
       
  • Detecting cadmium contamination in loessal soils using near-infrared
           spectroscopy in the Xiaoqinling gold area

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      Authors: Min Yang, Youning Xu, Haixing Shang, Abdullah Abdullah, Wen Zhang
      Abstract: Energy & Environment, Ahead of Print.
      Loess is an important soil type that is widespread in the Loess Plateau of northwest China. However, mining exploitation, beneficiation, and metallurgy have led to inorganic contamination of soils that threatens the health of residents. The regular absorption peak shift of near-infrared (NIR) spectra in loessal soils represents a new method of soil environmental assessment based on field reflectance spectroscopy and hyperspectral remote sensing. Specifically, the NIR features of loessal soil will shift in response to changes in the soil composition and microstructure induced by heavy metal pollution. This study collected 27 samples from notable regions in the study area. Mid-infrared (MIR) spectral analysis, NIR spectral analysis, modified seven-step Tessier sequential extraction, and X-ray diffraction were used to analyze the band shift phenomenon of MIR and NIR features. The alignment of NIR bands was determined via the correlation between NIR and MIR bands associated with the vibration variations of the hydroxyl group. The correlations established by NIR band positions and exchangeable Cd cations were also analyzed. The results were then discussed according to the mineralogical characteristics of the heavy metal cations adsorbed on the surface and interlayer sites of clay minerals. These results can be used as a reference for the application of NIR technology to detecting heavy metal contamination in the soil of mining regions.
      Citation: Energy & Environment
      PubDate: 2021-09-15T07:13:54Z
      DOI: 10.1177/0958305X211030114
       
  • Determinants of firm-level energy productivity – Evidence from the
           Korean emission trading scheme

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      Authors: Jung Youn Mo, Wooyoung Jeon
      Abstract: Energy & Environment, Ahead of Print.
      With increasing global pressure on transition to carbon neutrality, various technical and policy efforts such as emission trading scheme and carbon tax are being made to improve energy productivity. Yet, there are not many literatures that analyze determinants of firm-level energy productivity, which is an important issue as energy use in industry accounts for one fourth of global carbon emission. This study investigates factors affecting energy productivity such as technology innovation, environmental policy and energy price based on firm-level data from the Korean Emission Trading Scheme (KETS). The total factor energy productivity is estimated by industry based on stochastic frontier analysis (SFA) and panel data analysis is performed to identify determinants of firm-level energy productivity. The results show that energy productivity in Korea has been improved since 2016, and technical progress and environmental policy play an important role in promoting energy productivity. In addition, analysis identifying industry-specific characteristics is performed as their production process and energy consumptions structures vary. The result shows that innovation activity does not significantly affect energy productivity in process industries, but it does in the assembling and high technology industries. This paper implies that policy design reflecting industry-specific characteristics is important to improve energy efficiency more effectively.
      Citation: Energy & Environment
      PubDate: 2021-09-15T07:13:53Z
      DOI: 10.1177/0958305X211029273
       
  • Determining the effectiveness of pollution control policies implemented by
           the Chinese government: Distribution fitting and testing of daily PM2.5
           data

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      Authors: Gang Peng, Jie Zhang, Kai Shi
      Abstract: Energy & Environment, Ahead of Print.
      Air pollution has become an urgent issue affecting sustainable urban development. The Chinese government has implemented a series of air pollution control policies since 2012. Exploring the effectiveness of pollution control policies is important for future policy-making and improvements in air quality. Mean and variance tests were used for evaluation on the effectiveness of pollution control policies implemented in major cities and estimates of the heterogeneity among cities based on the distribution fitting and testing of daily PM2.5 data from January 2015 to January 2020. The nonparametric kernel density estimation adopted in this paper can effectively describe the data characteristics, and this is very important for air quality monitoring and control. Our findings demonstrate that air pollution prevention and control policies have significantly improved the levels and distribution of urban air quality in China.
      Citation: Energy & Environment
      PubDate: 2021-09-14T09:20:28Z
      DOI: 10.1177/0958305X211043528
       
  • Evaluating the relative operational performance of wind power plants in
           Indian electricity generation sector using two-stage model

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      Authors: Rajeev Kumar, Pavan Khetrapal, Manoj Badoni, Sourav Diwania
      Abstract: Energy & Environment, Ahead of Print.
      Nowadays, to fulfill growing power requirements at reasonable prices, like other European countries, the Indian electricity market is now more oriented towards renewable energy resources. Today, the wind energy industry has grown from a marginal activity to a multi-billion-dollar business in India's power production sector because of its comparatively safer and positive environmental features. Though, there are several wind energy power plants generating electricity in India's different geographical locations, assessing their performance is a crucial task and an important target for stakeholders. In the present study, an attempt is made to quantitatively assess the relative operational efficiencies of 14 wind power plants in India during 2016–2017 to 2019–2020 employing a two-stage data envelopment analysis Tobit model. Further, the sensitivity analysis is implemented in the present study to assess the robustness and efficacy of the data envelopment analysis models with different combinations of inputs and outputs. Data envelopment analysis results indicate that 14% of India's wind power plants were operated at the most productive scale during the observed period 2016–2017 to 2019–2020. The Tobit regression results indicate that the wind turbines’ age adversely affects production efficiency. In contrast, the site elevation has a significant positive impact on the operational efficiency of wind power plants. Findings from the present study may help stakeholders and policy regulators in the wind industry to identify the key factors influencing the performance of ongoing wind power plants in India and optimize operational strategies and policies.
      Citation: Energy & Environment
      PubDate: 2021-09-13T12:23:39Z
      DOI: 10.1177/0958305X211043531
       
  • Do remittance and renewable energy affect CO2 emissions' An empirical
           evidence from selected G-20 countries

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      Authors: Khalid Jamil, Dunnan Liu, Rana Faizan Gul, Zahid Hussain, Muhammad Mohsin, Guangyu Qin, Farman Ullah Khan
      Abstract: Energy & Environment, Ahead of Print.
      The study aims to compare CO2 emissions, renewable energy, trade openness, gross domestic product (GDP), financial development (FD), and remittance in selected G-20 countries. The study carried out fully modified ordinary least square (FMOLS) and dynamic ordinary least square (DOLS) models for estimation covering annual data from the year 1990–2019. LM tests detected the cross-section dependency while stationarity of the variables was checked through Levin-Lin-Chu and Im-Pesaran-Shin tests along with Hansen's Covariate-Augmented Dickey Fuller (CADF) test in the presence of cross-section dependency. The panel unit root tests reported that all variables became stationary after converting them into the first difference. The Panel Cointegration and Wester-Lund test examined the existence of long-run equilibrium nexus among selected variables in the context of G-20 countries. The study's findings show that there is a significant and negative relationship between renewable energy and CO2 emissions. It was proven in two models that the economic growth of selected G-20 countries has a positive relationship with CO2 emissions. Furthermore, findings indicate that the coefficient of financial development is positive and significantly impacts CO2 emissions. The remittances have a significant positive effect on CO2 emissions, while trade openness has an insignificant impact on CO2 emissions in both models. This research will enlighten policymakers, researchers, governments, and environmentalists toward attaining a sustainable environment by wisely consuming remittances and renewable energy resources.
      Citation: Energy & Environment
      PubDate: 2021-09-13T07:07:48Z
      DOI: 10.1177/0958305X211029636
       
  • Influence of retarded injection timing on thermal performance and emission
           characteristics of a diesel engine fuelled with an optimized pyrolytic
           blend

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      Authors: Gopinath Soundararajan, Devan Ponnusamy Kumarasami, Bibin Chidambaranathan, Pitchandi Kasi Viswanathan
      Abstract: Energy & Environment, Ahead of Print.
      The enormous rise in plastic waste leads to severe environmental issues and complete removal is a quiet challenge. The entire world focuses on finding new alternate for traditional conventional fuel. The waste low-density polyethylene is chosen as feedstock for the preparation of fuel from thermo-catalytic pyrolysis, considering the silica–alumina catalyst at a reaction temperature of 500 °C. From our previous study, the lower blends of waste low-density polyethylene exhibit a similar performance to diesel. However, brake thermal efficiency and oxides of nitrogen are not encouraging. Further improving combustion behaviour, the present research is carried out at different injection timings. The investigation is carried on standard injection timing of 23°bTDC and three retarded injection timings, namely, 21°bTDC, 19°bTDC and 17°bTDC. Retarded injection timing exhibits higher performance and lower unburned hydrocarbon, oxides of nitrogen and carbon monoxide emissions. However, smoke emission is increased due to the reduced heat release at all the considered test parameters. The result divulges that reduced performance and increased smoke at 17°bTDC due to the lack of burning rate. The combustion behaviour of 20% waste low-density polyethylene by volume at 19°bTDC is similar to that of diesel at 23°bTDC. Hence, the injection timing of 19°bTDC is preferred as an optimized condition for the test fuel 20% waste low-density polyethylene by volume.   
      Citation: Energy & Environment
      PubDate: 2021-08-31T10:14:45Z
      DOI: 10.1177/0958305X211033970
       
  • Evaluation analysis on industrial green total factor productivity and
           energy transition policy in resource-based region

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      Authors: Yaozu Xue
      Abstract: Energy & Environment, Ahead of Print.
      Based on the input-output panel data of industrial sectors of Shanxi Province, which is the only province-wide resource-based region in China, this paper uses the non-parametric DEA model and the Malmquist productivity index to construct the DEA-Malmquist model for evaluation analysis of the green total factor productivity (GTFP) and its decomposition value of the sub-sector, and then through fixed effect panel regression model studies the ways of energy transition of the SDG’s. The results show that the technological progress index has the greatest contribution to the growth of GTFP, while the scale efficiency index has the lowest contribution. And the amount of investment in environmental pollution control has a significant positive relationship with the GTFP of the three major polluting industries in Shanxi. Among them, investment in environmental pollution control has the greatest positive effect on the GTFP of light polluting industries characterized by high technology, high added value and low emissions; investment in environmental pollution control has the largest positive effect on the GTFP of heavy polluting industries with heavy chemical industry and pollution-intensive industries; investment in environmental pollution control has the weakest positive effect on the GTFP of the medium polluting industries that manufacture life service products and some heavy industrial products. Based on these results, the paper puts forward effective policy for the energy transition of resource-based regions.
      Citation: Energy & Environment
      PubDate: 2021-08-27T04:51:45Z
      DOI: 10.1177/0958305X211005428
       
  • How does energy investment affect the energy utilization-growth-tourism
           nexus' Evidence from E7 Countries

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      Authors: Bright Akwasi Gyamfi, Murad A Bein, Festus Fatai Adedoyin, Festus Victor Bekun
      Abstract: Energy & Environment, Ahead of Print.
      Tourism is an important driver of economic growth for several countries in the world. However, the rise in tourism activities has raised concerns regarding emissions resulting from tourist activities such as transportation as well as the consequent effect on the quality of the environment. Hence, this study examines the impact of tourism and other factors such as investments, energy utilization and economic growth on carbondioxide (CO2) emission in the emerging industrialized seven countries namely (China, India, Brazil, Mexico, Russia, Indonesia and Turkey) for the period 2000 to 2018. The study uses the Pool Mean Group Autoregressive Distributed Lag (PMG-ARDL), ordinal least square (OLS), dynamic ordinals least square (DOLS) and fully modified least square (FMOLS) estimators as well as Dumitrescu and Hurlin Causality Test. Long run regression estimates reveal that a increase in tourism activities lower carbondioxide emissions in the E7 countries which can be traced to the adoption of environmentally friendly tourism. Furthermore, investment in energy and economic growth, the majority of the regression results point that both factors lower carbondioxide emissions in the emerging seven (E7) countries while energy consumption is a driver of CO2 emissions in the E7 countries. The study suggests that the implementation of environmentally friendly tourism be sustained to continually improve the quality of the natural environment in the blocs. Similarly, strict regulations of economic activities in line with the protection of the environment are advised while the use of renewable energy is needed to reduce emissions in the E7 countries.
      Citation: Energy & Environment
      PubDate: 2021-08-27T04:51:45Z
      DOI: 10.1177/0958305X21999752
       
  • Economy–energy markets nexus during COVID-19: A dynamic
           time–frequency analysis

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      Authors: Masnun Mahi, Shamim Ahmed Khan, Mohammad Zainuddin, Ishtiaque Arif
      Abstract: Energy & Environment, Ahead of Print.
      We investigate dynamics between the economic activities and energy markets—both conventional and clean energy markets, with a sample of daily data from 1 January 2020 to 25 November 2020. We perform wavelet-based time–frequency techniques and measure the market volatility with continuous wavelet transforms. Besides, we use wavelet coherency to understand the co-movement of economic activities and energy markets and employ a nonlinear phase-difference technique to understand the time-varying causality between different series. Our continuous wavelet transform results show that all three market indices experience significant volatility in the coronavirus disease (COVID-19) period, notably during the initial period of the outbreak. The market volatilities are comparatively more substantial in the lower frequency band than the upper frequency, while the latter sustained longer in the markets. Moreover, wavelet coherency results show a strong correlation between the economic activity index and both energy market indices; however, the co-movement is significantly higher for the conventional energy market than the clean energy market. We further detect a positive and bi-directional causality between economic activities and energy market indices. Besides providing fresh and time-varying and frequency-varying relationship between global economic activities and the energy markets, which is currently lacking in the existing literature, our study has significant implications for the heterogeneous market participants in terms of improved price prediction accuracy. Furthermore, our findings can aid policymakers in decision making by showing that the dynamics between energy markets and economic activities change even within a short period, and imply that suitable constant policy interventions are necessary to avoid long-term predicament.
      Citation: Energy & Environment
      PubDate: 2021-08-26T12:00:40Z
      DOI: 10.1177/0958305X211032630
       
  • The future of coal as a transportation fuel

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      Authors: Vikram Mittal, Rajesh Shah, Nabill Huq
      Abstract: Energy & Environment, Ahead of Print.
      Due to environmental concerns and cost issues, coal is currently being phased out from usage in electricity production. Regardless, there remains a massive stockpile of coal reserves along with a large industrial complex and a robust distribution/processing infrastructure. As such, coal should be considered for usage in other energy areas. Since coal is simply a solid hydrocarbon, it can be converted over for usage as a transportation fuel. The Fischer-Tropsch process that underlies this conversion is well established with some countries like South Africa currently using it at large scales. Unfortunately, this conversion process has a large carbon footprint, even when using carbon capture technology. However, the blending of coal-based fuels with biodiesel has been found to be more carbon neutral than standard diesel or biodiesel alone. Additionally, coal can be used as an alternate to methane for hydrogen production. Given carbon capture technologies and the existing coal infrastructure, these two uses of coal provide opportunities for a sustainable and economical use of coal as a transportation fuel.
      Citation: Energy & Environment
      PubDate: 2021-08-17T10:46:23Z
      DOI: 10.1177/0958305X211037973
       
  • Thermal augmentation in solar aircraft using tangent hyperbolic hybrid
           nanofluid: A solar energy application

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      Authors: Wasim Jamshed
      Abstract: Energy & Environment, Ahead of Print.
      The major source of heat from the sun is solar energy, with enormous use of photovoltaic technology, solar power plates, photovoltaic lights and pumping solar water. This time is about the analysis of solar radiation and how the efficiency of solar aircraft may be improved by using solar radiation and nanotechnology. The study is intended to develop analyses of solar aircraft hybrid nanofluid transfer via parabolic trough surface collector solar wings. Solar radiative flow was named the heat source. The heat transfer efficiency of the wings is evaluated for various phenomena such as a slanted magnetic field, Joule heating, play heat and thermal radiative flow. The entropy production study was carried out in the instance of the tangent hyperbolic fluid. The modelled energy and momentum formulas were controlled with the well-established Keller box numerical technique. This work consists of ethylene glycol standard fluid with two differing types of nanosolid particles copper and silver. Different control factors for velocities, shear stress and temperature are addressed and shown in the figures and tables as well as surface friction and heat transport rate. In terms of thermal transfer, the efficacy of the aviation wings with thermal radiation amplification and changeable thermal conduction parameters is enhanced. Hybrid nanofluid is an ideal source of heat transmission compared to conventional nanofluids. Silver–copper/ethylene glycol thermal efficiency is reduced between 2.6% and 4.4% than copper–ethylene glycol nanofluid.
      Citation: Energy & Environment
      PubDate: 2021-08-11T02:31:17Z
      DOI: 10.1177/0958305X211036671
       
  • Is there a grid-connected effect of grid infrastructure on renewable
           

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      Authors: Yongpei Wang, Chao Xu, Pinghong Yuan
      Abstract: Energy & Environment, Ahead of Print.
      China has built the world's largest power infrastructure. Those upgrading power grid facilities not only contribute to providing enough end-used energy for the world's factories, but also offering a basic guarantee for the clean strategy of Building a Beautiful China proposed by the Chinese government. The national grid system supported by extra-high voltage and ultra-high voltage grids as the backbone makes it possible for a non-dispatchable renewable energy source to be connected to the national grid and transmitted to terminal consumers in load centers. The aim of this paper is to test whether China's advanced power grids have played a positive role in promoting power generation of intermittent renewable energy source. A novel nonlinear estimation named panel smoothing transition regression is introduced to capture heterogeneous effects of grid-connecting renewable energy source across regions. The empirical results show that whereas power grid infrastructure generally enhances power generation of renewable energy source and consumption in energy bases and load centers, the effects change across different voltage levels of power grids. The extra-high voltage power grids show strong support for grid-connecting renewable energy source, while the effect of ultra-high voltage power grids is unexpectedly insignificant. The extra-high voltage power grids have not yet become the backbone of the national grid, which is the main reason for the inadequate grid-connected renewable energy source to the ultra-high voltage power grids, indicating the importance of upgrading the power grid infrastructure.
      Citation: Energy & Environment
      PubDate: 2021-08-05T11:06:05Z
      DOI: 10.1177/0958305X211031015
       
  • Does air pollution affect clean production of sustainable environmental
           agenda through low carbon energy financing' evidence from ASEAN
           countries

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      Authors: Muhammad K Anser, Muhammad Usman, Danish I Godil, Malik S Shabbir, Mosab Tabash, Munir Ahmad, Aysha Zamir, Lydia B Lopez
      Abstract: Energy & Environment, Ahead of Print.
      This study describes different options regarding financing in low carbon energy sectors and air pollution, which further affect clean production and sustainable environment agenda regarding the Association of southeast Asian Nations (ASEAN) states. The purpose of this study is to reduce air pollution and improve environmental production through low carbon energy financing. This study further investigates, which particular country among selected ASEAN states has most affected by air pollution and decrease their energy sources as well as clean productivity level. The findings of this study indicate that transformation toward low carbon energy increased energy efficiency encouraged by all sectors of society in the target countries. It is observed that around 20,000 people have died in South East Asia (SEA) every year due to the polluted air environment among these countries.
      Citation: Energy & Environment
      PubDate: 2021-07-28T05:37:19Z
      DOI: 10.1177/0958305X211007854
       
  • Fusion of interval-valued neutrosophic sets and financial assessment for
           optimal renewable energy portfolios with uncertainties

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      Authors: Tuyet Thi Anh Nguyen, Shuo-Yan Chou
      Abstract: Energy & Environment, Ahead of Print.
      Renewable energy has been actively researched and developed in many countries to replace the conventional energy resources that come from fossil fuels. As social and environmental awareness of the renewable energy has grown, it is essential to address both quantitative factors and qualitative factors in determination of the optimal renewable energy portfolio. This paper proposes a novel approach to integrate a financial model and a fuzzy model to analyze both quantitative and qualitative factors. The financial model is utilized to calculate the quantitative factors, thereby assisting experts make judgments more accurately in the fuzzy model. The fuzzy model is utilized to evaluate the qualitative factors based on the expert judgements. Moreover, this paper proposes multi-segment judgment model that analyzes the evaluation of different groups, including government, investor and user groups. The results show that each group has different priority order. For example, the highest-priority factor of Government, Investor and User is environmental (with a score of 0.665), economic (with a score of 0.854), and technological criteria (with a score of 0.771), respectively. The results also indicated that small-scale onshore wind energy, large-scale onshore wind energy and solar energy is the best option for Government, Investor and User, respectively.
      Citation: Energy & Environment
      PubDate: 2021-07-01T05:16:03Z
      DOI: 10.1177/0958305X211019363
       
  • Effect of economic indicators, biomass energy on human development in
           China

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      Authors: Ngo Thai Hung
      Abstract: Energy & Environment, Ahead of Print.
      Previous studies ignored the distinction between short, medium, and long term by decomposing macroeconomic variables and human development index at different time scales. We re-visit the causal association between biomass energy (BIO), economic growth (GDP), trade openness (TRO), industrialization (IND), foreign direct investment (FDI), and human development (HDI) in China on a quarterly scale by scale basis for the period 1990 to 2019 using the tools of wavelet, i.e., wavelet correlation, wavelet coherence and scale by scale Granger causality test. The main findings uncover that IND, TRO, GDP, and BIO positively drive the HDI at low and medium frequencies, while FDI negatively impacts HDI during the sample period. Additionally, there is a bidirectional relationship between GDP and HDI at different time and frequency domains. Specifically, we discover that the positive co-movement is more robust in the aftermath of the global financial crisis, particularly for HDI, BIO, GDP, and TRO at medium frequencies throughout the period under research. Our empirical insights have significant implications for achieving human development sustainability in China.
      Citation: Energy & Environment
      PubDate: 2021-06-26T06:35:26Z
      DOI: 10.1177/0958305X211022040
       
  • Nudging down household electricity usage during peak hours with small
           monetary rewards

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      Authors: Miyoung Lee, Daehwan Kim
      Abstract: Energy & Environment, Ahead of Print.
      Two recent studies highlight the potential of a demand response (DR) program as a tool to manage peak-hour electricity consumption by households. Households in these studies respond to the offer of financial rewards or an appeal to the sense of civic duty and significantly reduce electricity consumption during declared peak hours. Due to the small number of peak events included in these studies, however, a question remains whether households will continue to respond to repeated calls to action over a long span of time. We analyze a demand response program of Gangwon Province, South Korea, called “Electricity Piggy Bank” where the incentive offered was in the form of small monetary reward together with an appeal to social consciousness. The program tracked the electricity usage of about 2,000 households over one-year period during which peak events were declared once a week. We find significant reduction in electricity usage during declared peak hours and, more importantly, no decay of effects over time. The magnitude of electricity savings during peak hours is no less than the one reported for the previous financial-incentive-based DR, suggesting that offering small monetary rewards together with pro-social stimuli can be a viable alternative to a financial-reward-oriented scheme.
      Citation: Energy & Environment
      PubDate: 2021-06-26T06:35:26Z
      DOI: 10.1177/0958305X211025689
       
  • De-carbonized energy initiative with bio-cell-distributed stations using
           GIS geodesic tools towards circular economy

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      Authors: Sammar Z Allam
      Abstract: Energy & Environment, Ahead of Print.
      De-carbonized energy implementation involves experts to integrate inter-connected strategic objectives. Pragmatic sustainable development requires substitution of fossil-fuel energy with cleaner energy. Simultaneously, demonstrating circular economy through waste-to-energy concept is another perspective to foster renewable energy resources. Biomass energy has the highest share in the renewable energy plan of most countries. UNDP (United Nation Development Program) has established a project to provide rural areas with bio cells that intake only animal waste. In the light of rural sustainable development, as part of this research proposal, bio cells can be upgraded by local manufacturers to be fuelled with crop residue, which will reduce crop residue burn. Instead of crop residue burn in open areas, polluting the Cairo skies with a black cloud or smog and endangering urban environmental health through escalating urban heat island phenomenon, agriculture waste can be utilized as an energy source of biofuels, bio-power or even bio-by-products to substitute liquefied petroleum gas or integrated within UNDP project upgrade. The novelty of this research is demonstrating bio cells in distributed stations at fire-hotspot location to supply decarbonized energy resources for communities rehabilitated within the GIS geodesic buffer. These distributed stations support LEED-ND rating system criteria of on-site energy generation. Such demonstration at fire spots through developing brownfield zones is a sustainable opportunity for misused zones. Numerical calibration of Orduz energy potential equation developed in 2011 shows that the generated bioenergy is 531.59 PJ, equivalent to 1.48E + 11 kWh annually. Such feasible sustainable development strategy through energy resources convergence promotes self-sufficient clusters.
      Citation: Energy & Environment
      PubDate: 2021-06-25T05:17:56Z
      DOI: 10.1177/0958305X211013438
       
  • Does a carbon emissions trading scheme spur urban green innovation'
           Evidence from a quasi-natural experiment in China

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      Authors: Chao Li, Xiangyou Li, Deyong Song, Meng Tian
      Abstract: Energy & Environment, Ahead of Print.
      Based on the panel data of 277 cities between 2003 and 2017 and a unique city-level dataset of green patent applications, this study employs the difference-in-differences (DID) method to evaluate the effect of China’s carbon emission trading scheme (ETS) pilots on urban green innovation. The findings indicate that China’s ETS pilots have a positive impact on urban green innovation, and that impact is more significant for municipalities than for prefecture-level cities. Furthermore, the impact on different categories of urban green innovation is heterogeneous. More specifically, China’s ETS pilots have significantly spurred urban green innovation that is closely related to energy conservation and emission reduction, including alternative energy production, transportation, energy conservation and so forth. Moreover, the facilitating effect of China’s ETS pilots on urban green innovation suffers from a lagging effect, which began to show a significant positive effect in 2016. Overall, this paper identifies the effect of China’s ETS pilots on urban green innovation, and suggests that the government should consider the heterogeneity of urban green innovation when designing national ETS policies.
      Citation: Energy & Environment
      PubDate: 2021-06-24T06:02:57Z
      DOI: 10.1177/0958305X211015327
       
  • Energy conservation potential in highway illumination system: A
           Techno-Enviro-Economic study on retrofitting HPS with LED luminaires

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      Authors: Tallal Ahmed, Waqas Khalid, Adeela Aslam
      Abstract: Energy & Environment, Ahead of Print.
      Adequate and appropriate illumination across the highway isessential for safety. High-pressure sodium luminaires (HPS) are usually standard throughout Pakistan. However, with the advancements in illumination technologies and growing trend of energy efficiency, retrofitting of conventional HPS luminaires with light-emitting diode luminaires (LEDs) is becoming popular. Low energy consumption, high color rendering index (CRI), longer life span, and variety in correlated color temperature (CCT) make LED luminaires ideal for replacing inefficient HPS lights. The retrofitting of HPS with LED illumination system comes with a capital cost, and its feasibility depends on the energy conservation potential. This study presents a case of 4,014 HPS luminaires installed across an 85 km long highway in second highly populated city of Pakistan. A targeted energy audit of HPS illumination system was conducted and compared with the proposed LED system of equivalent illumination quality. The results indicate that by retrofitting the HPS luminaires, the energy consumption can be reduced by 60% and with 83.3% reduction in the apparent power. Furthermore, the proposed LED illumination system will significantly improve the power quality, light noise, energy losses, carbon footprint, and operational cost.
      Citation: Energy & Environment
      PubDate: 2021-06-24T06:02:56Z
      DOI: 10.1177/0958305X211020477
       
  • Wind energy and the historic environment: A business-driven symbiosis
           approach

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      Authors: George A Xydis, Katerina Kremastioti, Maria Panagiotidou
      Abstract: Energy & Environment, Ahead of Print.
      The present study discusses alternative ways of achieving optimum energy efficiency for historic buildings in areas where sustainable energy projects are planned. About 25% of Europe’s building stock was constructed before the mid-20th century and despite EU’s strenuous efforts for the protection and conservation of historic buildings and complexes, achieving energy efficiency with the minimum or preferably no intervention remains as a requirement. The settlement of Monemvasia, has been selected as our case study. A model building was chosen, its special characteristics are presented, and four solutions to the energy efficiency upgrade of the building were tested: (a) the application of internal insulation, (b) a heat pump installation, (c) the application of roof insulation, and (d) the replacement of the internal doorframes. The four scenarios were simulated via the TEE-KENAK software and the percentage of the annual energy saved through the application of each one of the mentioned measures was estimated. The results proved that installing a heat pump and internal insulation would maximise energy savings. Coupling the energy demand of the settlement in correlation with a wind energy project in the wider area, and the available curtailment was explored. The results showed that if 300 houses decide on acquiring their electricity consumption from the local wind independent power producer, at a price of EUR 35/MWh, the possible profit from the market could reach EUR100,000 per year. Such a business-driven concept could be extrapolated and evolve into a holistic wind energy and historic environment symbiosis setting.
      Citation: Energy & Environment
      PubDate: 2021-06-16T05:31:46Z
      DOI: 10.1177/0958305X211014870
       
  • Asymmetric impact of fiscal decentralization and environmental innovation
           on carbon emissions: Evidence from highly decentralized countries

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      Authors: Meng Lingyan, Ze Zhao, Haider Ali Malik, Asif Razzaq, Hui An, Marria Hassan
      Abstract: Energy & Environment, Ahead of Print.
      This study examines the asymmetric link between fiscal decentralization, environmental innovation, and carbon emissions in highly decentralized countries. Our preliminary findings strictly reject the preposition of data normality and highlight that the observed relationship is quantile-dependent, which may disclose misleading results in previous studies using linear methodologies. Therefore, a novel empirical estimation technique popularized as Method of Moments Quantile Regression is employed that simultaneously deal with non-normality and structural changes. The results exhibit that fiscal decentralization significantly mitigates carbon emissions only at lower to medium emissions quantiles. On the other hand, environmental innovation reduces carbon emissions only at medium to higher emissions quantiles. Interestingly, the emissions-reducing effect of fiscal decentralization is highest for lower emissions quantiles and lowest for higher emissions quantiles. In contrast, the impact of environmental innovation is lowest for lower emissions quantiles and highest for higher emission quantiles. Economic growth and population increase carbon emissions, and their emissions-increasing effect are lowest for lower emissions quantiles and highest for higher emissions quantiles. Moreover, the heterogeneous panel causality test confirms a one-way causal association, implying that any policy intervention regarding fiscal decentralization and environmental innovation significantly affects carbon emissions.
      Citation: Energy & Environment
      PubDate: 2021-06-14T10:21:30Z
      DOI: 10.1177/0958305X211018453
       
  • Planning natural gas networks and storage in emerging countries – an
           application to Brazil

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      Authors: Ricardo Moreira dos Santos, Alexandre Szklo
      Abstract: Energy & Environment, Ahead of Print.
      Some emerging countries, such as Brazil, have large remaining natural gas resources but relatively poor infrastructure to monetize it. When most of the natural gas extraction derives from associated gas, this results in high reinjection rates in production fields combined with fuel imports also to deal with an increasingly variable demand. This study test the hypothesis that modeling the natural gas transportation network expansion with Underground gas Storage (UGS) is crucial, as UGS can reduce transportation costs by better fitting natural gas supply and demand. Without UGS chances are that network expansion will be based in oversized pipelines, or pipelines often challenged by peaking demands. Therefore, this study emulated a real natural gas transport network in a thermo-hydraulic model, aiming at diagnosing its bottlenecks mainly caused by demand intermittency, and pointing out infrastructure solutions. Findings indicated the design of UGS associated with new pipelines as a problem-solver for network bottlenecks, under a least-cost approach. This option reduced idleness and lowered gas transmission costs by 60%. In addition, it increased the network operation reliability and created a virtuous cycle, where a better planning reduces the gas tariffs and spur infrastructure expansion by raising the fuel competitiveness.
      Citation: Energy & Environment
      PubDate: 2021-06-08T05:58:53Z
      DOI: 10.1177/0958305X211019011
       
  • Adjustment of bus departure time of an electric bus transportation system
           for reducing costs and carbon emissions: A case study in Penghu

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      Authors: Bwo-Ren Ke, Shyang-Chyuan Fang, Jun-Hong Lai
      Abstract: Energy & Environment, Ahead of Print.
      As a response to the worldwide problems of global warming and environmental pollution, electric vehicles have become the main direction of development in the automobile industry. Taking the bus system of Penghu Islands as the subject, this study explores the switching of all the original diesel buses to electric buses, and it adjusts the departure time of all the buses, with the purpose of reducing the costs of the construction and electricity used in an electric bus system. Plug-in and battery-swapping buses are used as examples in the study, and the Genetic Algorithm (GA), the Particle Swarm Optimization (PSO) and Simulate Anneal Arithmetic (SA) algorithms, as well as an algorithm that combines the above, is used to optimize the departure times, in order not to affect the volumes and passenger demands in units of five minutes, the shift starts within the range of 15 minutes before or after the scheduled time. After each new schedule is prepared, batteries are used to optimize the daytime charging schedule of electric buses, to ensure the lowest cost of each new schedule. The results show that, regardless of which algorithm is used to optimize the departure time, all the minimum costs are lower than the best results before the adjustment, especially for the PSO-GA algorithm. Hence, the proper adjustment of the departure time can really reduce the construction and electricity costs and carbon emissions of the electric bus system.
      Citation: Energy & Environment
      PubDate: 2021-05-26T06:00:27Z
      DOI: 10.1177/0958305X211016872
       
  • Total-factor air environmental efficiency and its influencing factors in
           the areas along the Belt and Road in China: A spatial spillover
           perspective

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      Authors: Ni-Ni Yin, Ke-Liang Wang, Zhen Yao, Li-Li Ding, Zhuang Miao
      Abstract: Energy & Environment, Ahead of Print.
      In order to promote sustainable economic development in the areas along the Belt and Road in China, it is of great necessity to reduce the negative impact of air pollutants resulting from industrialization and urbanization on the complex and fragile ecological environments of neighboring areas. First, this study estimated the total-factor air environmental efficiency (TFAEE) of 17 provinces along the Belt and Road in China from 2010 to 2017 using a slacks-based measure (SBM) model. Second, the global and local Moran indices were used to test the spatial correlations between TFAEEs. Finally, the spatial factors and spatial spillover effects influencing the TFAEEs were investigated using the spatial Durbin model with spatiotemporal double fixed effects. The results were shown as follows: (1) The total-factor TFAEEs of the areas along the Belt and Road were low and showed significant regional spatial differences during 2010–2017. (2) There was a positive spatial autocorrelation between the TFAEEs of the areas along the Belt and Road, and the spatial distribution generally clustered into High-High and Low-Low concentrations. (3) Economic development and technological innovation played significantly positive effects on TFAEEs of the areas in the Belt and Road, while energy consumption structure had negative effect on it. In addition, although industrial structure and environmental regulation were negatively correlated with TFAEEs, the coefficients were not significant. (4) The positive spatial spillover effect of the TFAEEs of the areas along the Belt and Road was mainly the result of significant environmental regulations and insignificant economic development factors, while the technological innovations, energy consumption structures and industrial structures showed insignificant negative spatial spillover effects.
      Citation: Energy & Environment
      PubDate: 2021-05-22T08:46:32Z
      DOI: 10.1177/0958305X211015146
       
  • Bilateral bidding strategy in joint day-ahead energy and reserve
           electricity markets considering techno-economic-environmental measures

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      Authors: Mojtaba Shivaie, Mohammad Kiani-Moghaddam, Philip D Weinsier
      Abstract: Energy & Environment, Ahead of Print.
      In this study, a new bilateral equilibrium model was developed for the optimal bidding strategy of both price-taker generation companies (GenCos) and distribution companies (DisCos) that participate in a joint day-ahead energy and reserve electricity market. This model, from a new perspective, simultaneously takes into account such techno-economic-environmental measures as market power, security constraints, and environmental and loss considerations. The mathematical formulation of this new model, therefore, falls into a nonlinear, two-level optimization problem. The upper-level problem maximizes the quadratic profit functions of the GenCos and DisCos under incomplete information and passes the obtained optimal bidding strategies to the lower-level problem that clears a joint day-ahead energy and reserve electricity market. A locational marginal pricing mechanism was also considered for settling the electricity market. To solve this newly developed model, a competent multi-computational-stage, multi-dimensional, multiple-homogeneous enhanced melody search algorithm (MMM-EMSA), referred to as a symphony orchestra search algorithm (SOSA), was employed. Case studies using the IEEE 118-bus test system—a part of the American electrical power grid in the Midwestern U.S.—are provided in this paper in order to illustrate the effectiveness and capability of the model on a large-scale power grid. According to the simulation results, several conclusions can be drawn when comparing the unilateral bidding strategy: the competition among GenCos and DisCos facilitates; the improved performance of the electricity market; mitigation of the polluting atmospheric emission levels; and, the increase in total profits of the GenCos and DisCos.
      Citation: Energy & Environment
      PubDate: 2021-05-22T08:45:14Z
      DOI: 10.1177/0958305X211014875
       
  • Energy security through diversification of non-hydro renewable energy
           sources in developing countries

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      Authors: Moises Neil V Seriño
      Abstract: Energy & Environment, Ahead of Print.
      The increasing diversity of renewable energy sources in developing countries is receiving attention in discussions about the future of energy security and climate change. Given the strong relationship between energy demand and economic growth, this paper explores the factors that influence the diversification of non-hydro renewable energy sources across 117 developing countries covering more than 30 years. We contribute to the literature by using a new measure capturing diversification of non-hydro renewable energy sources and explore several estimation techniques in investigating determinants of diversification. Controlling for regional variations, results show that higher per capita income, implementation of policies promoting renewable energy, technological innovations and human capital improvement encourage diversification. In addition, the squared term of income was included to capture nonlinear effects. The results depict a U-shaped kind of relationship suggesting non-monotonic changes in renewable energy diversification in relation to increasing affluence. This implies that greater environmental concern in terms of energy use can be expected as countries developed. Other determinants suggest that high dependence on imported fuels and increasing world market price for crude oil will motivate developing countries to diversify non-hydro renewable energy sources. In contrast, the local abundance of hydropower and the availability of natural resources like oil impede diversification. Finally, we conclude that the progressive integration of renewable energy in developing countries energy mix can be hastened with environmental awareness, relevant policy, and favorable economic conditions.
      Citation: Energy & Environment
      PubDate: 2021-05-22T08:44:48Z
      DOI: 10.1177/0958305X211013452
       
  • Convergence in per capita carbon footprint and ecological footprint for G7
           countries: Evidence from panel Fourier threshold unit root test

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      Authors: Veli Yilanci, Muhammed Sehid Gorus, Sakiru Adebola Solarin
      Abstract: Energy & Environment, Ahead of Print.
      This paper aims to explore the convergence of per capita carbon and ecological footprints in G7 countries during 1961–2016. For this purpose, we propose a new unit root test in the panel setting–the panel Fourier threshold unit root test. This test takes into consideration both multiple smooth structural changes and nonlinearity. According to the literature, the power of the nonlinear unit root tests is reduced in the case of ignoring structural breaks. Therefore, we expect to get more reliable empirical findings by utilizing this methodology. The empirical results of this paper show that these series have nonlinear behaviors for the period 1961–2016. Furthermore, they demonstrate that the absolute convergence hypothesis is valid in G7 countries for both regimes. Thus, governments can conduct common environmental policies, including international climate summits and agreements, instead of national-based policies to mitigate environmental deterioration in their countries.
      Citation: Energy & Environment
      PubDate: 2021-04-30T04:59:22Z
      DOI: 10.1177/0958305X211011461
       
  • Time–frequency analysis of the interaction mechanism between European
           carbon and crude oil markets

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      Authors: Yaqi Wu, Chen Zhang, Po Yun, Dandan Zhu, Wei Cao, Zulfiqar Ali Wagan
      Abstract: Energy & Environment, Ahead of Print.
      The joint behavior of internal and external system brings out a high complexity of the carbon and oil price interactions, such as non-linearity and multi-frequency. This paper innovatively proposed a time-frequency mechanism between carbon and oil markets from the two aspects of internal system and external factors, and introduced a novelty partial wavelet analytics to explore their dynamic multi-scale interactions. We selected the European carbon and Brent oil futures prices data from March 2009 to December 2020, with the consideration of several necessary control variables from the external surroundings. Our findings point to a stable and strong in-phase relationship between the two markets, with oil leading at medium and lower frequencies. However, the mutual leading relationships are especially sensitive during abnormal political events and periods of financial recession and global emergency, which are observed at different periods for intermediate horizons. What is more, the interactions are more diversified and feebler at short-timescale. Under the vision of carbon neutrality, these evidences provide invaluable guidance for regulators to structure a more flexible adjusting mechanism for the risk control of carbon markets, and also help investors to hedge risk aimed at different time horizons.
      Citation: Energy & Environment
      PubDate: 2021-04-23T05:20:45Z
      DOI: 10.1177/0958305X211002457
       
  • Intertemporal change in the effect of economic growth on carbon emission
           in China

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      Authors: Jingwen Zhang, Yin Dai, Chi-Wei Su, Dervis Kirikkaleli, Muhammad Umar
      Abstract: Energy & Environment, Ahead of Print.
      This research examines the factor of causality between the variables of economic growth and carbon emissions in China, by conducting full, and sub-sample Granger causality tests for the period of 1965 to 2019. The full-sample Granger causality test is not considered to be authentic, and is rather unstable, as indicated by the parameter stability tests. Therefore, we consider the time variation using a causality test, and the results indicate that the causality exists from the Gross Domestic Product (GDP) growth to the Carbon Dioxide (CO2) emissions. This development essentially suggests that economic growth is critical for China's environment. It also implies that carbon emissions are mainly determined by the increase in economic growth, at some specific period in time. Thus, in this regard, the use of renewable energy sources should be encouraged by policymakers, in order to deal with rise in the energy demand, and promote industrial upgrading, so as to slow down the rate degradation that the environment have been experiencing. However, our empirical results indicate that CO2 emissions are not the Granger reason to GDP. In this case, the government can formulate more conservative reduction policies that pertain to carbon emissions, and will therefore, not impede the economic growth.
      Citation: Energy & Environment
      PubDate: 2021-04-22T08:06:37Z
      DOI: 10.1177/0958305X211008618
       
  • Exploring the untapped potential of solar photovoltaic energy at a smart
           campus: Shadow and cloud analyses

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      Authors: Zeineb Behi, Kelvin Tsun Wai Ng, Amy Richter, Nima Karimi, Abhijeet Ghosh, Lei Zhang
      Abstract: Energy & Environment, Ahead of Print.
      Solar energy is abundant, and technological advances have made solar energy systems more affordable than ever before. Using photovoltaic (PV) systems could significantly reduce our reliance on fossil fuels, and facilitate sustainable energy uses. Solar power utilities, such as self-compacting disposal bins could be used to enhance waste management processes. This is particularly important in Canada, where $3.3 billion was spent on waste management systems in 2016. In this study, solar irradiance and climatic conditions at eight locations on a University campus in Regina, Saskatchewan, are studied. Results suggest that solar utilities with automatically adjusting PV receivers could increase energy capture between 18.7 – 27.5%. Temporally, solar irradiance was similar in June and July, but lower in August. Statistical analysis found that some locations tended to be more susceptible to shadow effects. The results highlight the importance of spatial allocations of these small smart disposal bin systems. Regression analysis found that temperature was the most significant factor when relating climate to solar irradiance. The use of smart disposal bins fits well with the University’s 2020–2025 Strategic Plan of reduction in ecological footprint.
      Citation: Energy & Environment
      PubDate: 2021-04-15T05:53:06Z
      DOI: 10.1177/0958305X211008998
       
  • Ecological footprint, human capital, and urbanization

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      Authors: Yang Chen, Chien-Chiang Lee, Ming Chen
      Abstract: Energy & Environment, Ahead of Print.
      The rapid development of the world economy has been accompanied by a significant increase in ecological footprint. Represented by population agglomeration, urbanization has exacerbated environmental pressure, but the improvements in the levels of human capital may offset this negative impact. This research thus uses cross-country data from 110 economies over the period 1990–2016 to explore the correlations among human capital, urbanization, and ecological footprint. The findings show that first, from a global perspective, human capital initially increases and then reduces ecological footprint. The analysis based on sub-samples shows that human capital of the high-income group decreases ecological footprint, whereas human capital of the low-income group and that of countries with large populations raise ecological footprint. Second, urbanization plays a linear moderating role in human capital’s impact on the ecological footprint. The higher the level of urbanization is, the higher is the turning point of human capital that is needed to improve environmental quality. Third, when the population size is larger or ecological footprint is greater, the turning point of human capital is higher under the same urbanization level. Therefore, countries should continue to enhance human capital to promote the upgrading of industrial structure, green technology innovation, and changes in energy-saving lifestyle. Moreover, it is beneficial for countries to pay close attention to the negative impact of population size or accelerated urbanization on environmental quality.
      Citation: Energy & Environment
      PubDate: 2021-04-15T05:53:03Z
      DOI: 10.1177/0958305X211008610
       
  • Economic regulation of energy costs when integrated into distribution
           networks of industrial enterprises

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      Authors: Ivan A Kapitonov, Andrejs Vilks
      Abstract: Energy & Environment, Ahead of Print.
      The relevance of the study lies in the fact that each enterprise solves the issues of energy availability independently and cannot influence the whole market. The purpose of this article is to research the energy costs when integrated into distribution networks of industrial enterprises. The novelty of the study is determined by the developed model, which allows to determine the possibility of constant energy supply to the network of enterprises, not only subject to its market availability, but also with significant fluctuations in supply and demand in the market. In this case, the consequences, as noted by the authors, will be aimed at ensuring the receipt of the final product at an agreed price. The article shows that distribution networks cannot always guarantee a constant flow of energy at a single tariff. The proposed model is designed to remove these restrictions. The practical significance of the study is determined by the structure of energy generation and its application on the basis of coordinated supply and the formation of the final product price in the period.
      Citation: Energy & Environment
      PubDate: 2021-04-07T07:01:04Z
      DOI: 10.1177/0958305X211005723
       
  • Panel evidence of the dynamics between energy consumption and trade
           openness in ASEAN and East Asia

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      Authors: Chee-Hong Law, Siok Kun Sek
      Abstract: Energy & Environment, Ahead of Print.
      This paper investigated the dynamics between trade openness and energy consumption in five members of the Association of Southeast Asian Nations (ASEAN) and three East Asian countries from 1980 to 2014. Previous theoretical discussions and empirical findings pointed out that trade openness had ambiguous effects on energy consumption. A panel dataset involving energy consumption per capita, trade openness, real gross domestic product per capita, gross fixed capital formation per capita and foreign direct investment was estimated. The Lagrange multiplier (LM) cross-sectional dependence test confirms the existence of cross-sectional dependence among the cross-sectional units. Moreover, the Westerlund cointegration test showed that the variables were not cointegrated. Hence, the dynamics among the variables were explored using the panel vector autoregressive method. The results suggested that there is a unidirectional Granger causality from trade openness to energy consumption. Further, the impulse response functions implied that the effect of trade openness on energy consumption occurred via the dynamics between trade openness and gross capital formation per capita. Finally, the forecast error variance decomposition showed that the contribution of trade openness on energy consumption increased during the examined period.
      Citation: Energy & Environment
      PubDate: 2021-04-06T01:29:02Z
      DOI: 10.1177/0958305X211007596
       
  • The effects of globalization, energy consumption and economic growth on
           carbon dioxide emissions in South Asian countries

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      Authors: Muhammad Bilal Khan, Hummera Saleem, Malik Shahzad Shabbir, Xie Huobao
      Abstract: Energy & Environment, Ahead of Print.
      This study analyzes the relationship between globalization, energy consumption, and economic growth among selected South Asian countries. This study also finds causal association between energy growth and nexus of CO2 emissions, and employed the premises of the EKC framework. The study used annual time series analysis, starting from 1972 to 2017. The data set has been collected from the world development indicator (WDI). The result of a fully modified ordinary least square (FMOLS) method describes a significantly worsen the quality environment in the south Asian region. The individual country as Bangladesh shows a positively significant impact on the CO2 emissions and destroying the level of environment regarding non-renewable energy and globalization index. However, negative and positive growth level (GDP) and square of GDP confirm the EKC hypothesis in this region. This study has identified the causality between GDP growth and carbon emission and found bidirectional causality between economic growth and energy use.
      Citation: Energy & Environment
      PubDate: 2021-04-04T05:40:15Z
      DOI: 10.1177/0958305X20986896
       
  • Impact of financial development and economic growth on energy consumption:
           A panel vector autoregressive analysis for the comparison of G7 and top 10
           emerging market economies

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      Authors: Alper Aslan, Onur Gozbasi, Buket Altinoz, Mehmet Altuntas
      Abstract: Energy & Environment, Ahead of Print.
      The aim of this paper is to investigate the relationship between energy consumption, financial development, and economic growth in the case of the G7 economies and emerging market economies. To this end, the role of the banking sector, as well as data from both the stock and the bond market, are explicitly used to proxy financial development. It is used the panel VAR method for the data period from 1990 to 2015. The results illustrate that there is a positive link between the stock market development and energy consumption in both G7 and top 10 emerging market economies in the long run. Also, while banking sector development in G7 countries decreases energy consumption in the long run, increases it in emerging market economies. Another aspect of the results is the determination of the energy-enhancing effect of the bond market development in the G7 countries. Moreover, while the results once again emphasize the existence of the link between financial development and energy consumption, they differ in terms of developed and developing countries.
      Citation: Energy & Environment
      PubDate: 2021-04-02T04:14:24Z
      DOI: 10.1177/0958305X211004113
       
  • Studies on characteristics of fine particulate matter emissions from
           agricultural residue combustion

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      Authors: Minwook Kim, Seunghyun Jo, Jiyun Woo, Eui-Chan Jeon
      Abstract: Energy & Environment, Ahead of Print.
      Biomass burning is largely divided into six types: open burning, agricultural waste burning, meat and fish roasts, wood stoves and boilers, furnaces, and charcoal burners. Biomass burning is largely characterized by incomplete combustion due to the difficulty of appropriate control, which results in the emission of a large amount of air pollutants and the generation of harmful substances such as volatile organic compounds (National Institute of Environmental Research, 2014). Burning agricultural residue releases a large amount of fine particulate matter (PM). Open burning of agricultural residue, burning agricultural residues without incineration facility, in the rural areas are frequently observed Therefore, management based on accurate analysis of emission characteristics is needed. In Korea, most agricultural residues except for rice straw are incinerated in the field. Agricultural residues with a high incineration ratio are Chili and Perilla. The characteristics of PM emission by agricultural residues combustion were analyzed for Chili and Perilla. PM measuring equipment are Stack sampling system and Cascade Impactor (PM10, PM2.5 Impactor, Johnas, Paul Gothe GmBH). This study, the emission characteristics of PM-10, PM-2.5 generated in the combustion of agricultural residues were examined in consideration of moisture content.
      Citation: Energy & Environment
      PubDate: 2021-03-23T04:25:02Z
      DOI: 10.1177/0958305X21997994
       
  • Impact of the rise of solo living and an ageing population on residential
           energy consumption in South Korea

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      Authors: Seong-Hoon Cho, Moonwon Soh, Kihyun Park, Hyun Jae Kim
      Abstract: Energy & Environment, Ahead of Print.
      Demographic changes have a profound impact on residential energy consumption. The number of single-person households is rapidly increasing around the world and the percentages of elderly individuals in the populations of almost all countries are expanding. The objective of our research was to analyze how single-person households and elderly households impact residential energy intensity, defined as annual residential energy consumption per capita per unit of finished area of the household’s house, and how those impacts interact with each other using South Korea as a case study. Our findings suggest that the rise of solo living and an ageing population have overlapping effects on energy consumption and threaten future improvements in residential energy intensity. Specifically, an increase of single-person households results in a decline in energy intensity regardless of whether the household is elderly or non-elderly and the effect of an increase in elderly households on energy intensity depends on whether the household is single- or multiple-person. Given the similar average size of finished area for single-person households, the difference in per unit energy consumption between elderly versus non-elderly households likely comes from behavioral differences such as a greater use of energy-intensive appliances by non-elderly households than elderly households. However, for multiple-person households, the effect of such behavioral differences seems to be dominated by the effect of a house’s shared amenities. The common space and energy-consuming amenities of a house are shared by more individuals in non-elderly households, leading to more intensive energy consumption by non-elderly multiple-person households than by elderly multiple-person households.
      Citation: Energy & Environment
      PubDate: 2021-03-22T03:50:06Z
      DOI: 10.1177/0958305X211002322
       
  • The role of energy types and environmental quality on human health in
           developing Asian countries

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      Authors: Majed Alharthi, Imran Hanif
      Abstract: Energy & Environment, Ahead of Print.
      The use of dirty (fossil fuel-based) energy in the process of economic growth challenges humanity through different health issues. This research examines the health risks in the form of mortality rates and the occurrence of respiratory illnesses due to energy usage, greenhouse gas discharges, and economic venture in twenty developing countries of Asian. For this objective, the study investigated a panel dataset of twenty-three years (1995–2018) to measure the short and long-term consequences of environmental contamination on health issues. Results of this study generated through the Autoregressive-Distributed lag (ARDL) technique of econometric. Experimental outcomes of the study confirm that dirty energy, carbon emission, and the process of natural resource exhaustion have a significant and positive impact on health risks on the people of the developing region of Asia. On the other hand, the per capita income growth and clean energy usage contributing positively to human health improvement. The high mortality is positively associated with carbon emission in the case of short-run analysis. These results suggest a comprehensive governance policy set to protect people from the negative impact of dirty energy usage and carbon emission discharge.
      Citation: Energy & Environment
      PubDate: 2021-03-18T05:22:05Z
      DOI: 10.1177/0958305X21997098
       
  • Biosynthesized TiO2 nanoparticles an efficient biogenic material for
           photocatalytic and antibacterial applications

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      Authors: Nagalakshmi Meenatchisundaram, Jeganathan Chellamuthu, Anandha Raj Jeyaraman, Nithya Arjunan, Jothi Basu Muthuramalingam, Subbian Karuppuchamy
      Abstract: Energy & Environment, Ahead of Print.
      A simple one-step biosynthesis route has been adopted for the synthesis of high crystalline phase pure anatase TiO2 nanoparticles. The structural conformation and functional group analysis of the synthesized nanoparticles were made through X-Ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR), respectively. The optical property and the band gap were estimated by using UV-Visible diffuse reflectance spectroscopy (UV-DRS). The surface morphological properties of the anatase TiO2 nanoparticles were confirmed using Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) and the size of the synthesized nanoparticles are 8 nm. The element analysis was evaluated by using EDS and X-ray photoelectron spectroscopy (XPS). The photocatalytic activity of the prepared sample was investigated by the decolourization of Methylene blue dye under UV and solar light irradiation. The maximum dye removal efficiency of 99.2% was observed for solar light irradiation. Besides, the prepared samples also exhibit excellent antibacterial activity against Klebsilla Pneumoniae and Streptococcus Pneumoniae. The antibacterial activity for the synthesized TiO2 nanoparticles show maximum zone of inhibition (23.5 mm). Thus, the biogenic property of the bioprocessed TiO2 nanoparticles is a potential material for environmental and biomedical applications.
      Citation: Energy & Environment
      PubDate: 2021-03-12T10:29:55Z
      DOI: 10.1177/0958305X211000261
       
  • Estimating the role of urban development in environment quality: Evidence
           from G7 countries

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      Authors: Setareh Katircioglu
      Abstract: Energy & Environment, Ahead of Print.
      This study investigates the role of urbanization in carbon dioxide (CO2) emission in the case of the Group of Seven (G7) countries, except Germany. The conventional environmental Kuznets curve (EKC) was revised by augmenting and controlling for urbanization for this purpose. The results of this study confirm the long-term effects of urbanization on CO2 emission in the selected G7 countries. Only France and Italy seem to manage environmental issues when promoting urbanization; this is because urban development exerts negative effects on the climate levels in these two countries, while it generates positive impacts in the case of the other G7 countries. The inverted U-shaped and revised EKC is also successfully confirmed for only France and Italy among the others.
      Citation: Energy & Environment
      PubDate: 2021-03-10T05:19:12Z
      DOI: 10.1177/0958305X21997980
       
  • Adsorptive removal of lead and cadmium ions from aqueous solutions by
           aluminium oxide modified onion skin wastes: Adsorbent characterization,
           equilibrium modelling and kinetic studies

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      Authors: Adeyinka Sikiru Yusuff
      Abstract: Energy & Environment, Ahead of Print.
      Aluminium oxide modified onion skin waste (Al2O3/OSW) was characterized and used for adsorption of metal ions (Pb2+ and Cd2+) in this study, and the relations between sorbent properties and metal ion sorption were investigated. The effects of adsorption process conditions on metal ion removal efficiency, including initial cation concentration, contact time, adsorbent dosage and pH, were examined. The obtained adsorption data were analyzed by various adsorption isotherm and kinetic models. It was found that the optimum values of the initial concentration, contact time, adsorbent dosage and pH were 10 mg/L, 120 min, 1.6 g/L and 6.0, respectively. At these optimum conditions, maximum removal percentages of Pb2+ and Cd2+ were 91.23 and 94.10%, respectively. The isotherm and kinetic studies showed a multilayer adsorbate-adsorbent system with the dominance of the chemisorption mechanism. The study concluded that onion skin waste is a viable, cheap and effective alternative for removing heavy metal ions from water/wastewater.
      Citation: Energy & Environment
      PubDate: 2021-03-04T07:02:25Z
      DOI: 10.1177/0958305X21989886
       
  • Dependence between oil price changes and sectoral stock returns in
           Pakistan: Evidence from a quantile regression approach

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      Authors: Mushtaq Hussain Khan, Junaid Ahmed, Mazhar Mughal
      Abstract: Energy & Environment, Ahead of Print.
      This study explores the dependence between changes in world crude oil prices and the performance of the Pakistan Stock Exchange, at the aggregate as well as sectoral levels for the period from July 1997 to December 2016. Quantile regression approach is employed for a detailed examination of the structure and degree of dependence for three sub-periods corresponding to normal, rising, and falling oil price periods. We found that the dependence between changes in crude oil price and the sectoral stock returns is heterogeneous across industries and it exists in both bullish and bearish market trends. The dependence at the upper and lower quantiles is found to be a common feature across industries. Moreover, the dependence and direction of the relationship change at times of structural breaks. The findings highlight an external channel through which fluctuations in stock returns may impede the liquidity of the stock market of an oil-importing country such as Pakistan, thereby affecting the domestic economy.
      Citation: Energy & Environment
      PubDate: 2021-03-03T05:08:29Z
      DOI: 10.1177/0958305X21997987
       
  • Green retrofit of existing residential buildings in China: An
           investigation on residents’ perceptions

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      Authors: Yupei Lai, Yutong Li, Xinyi Feng, Tao Ma
      Abstract: Energy & Environment, Ahead of Print.
      Green retrofit of existing residential buildings is a sustainable way to improve the energy efficiency. However, such implementation faces some challenges due to the different willingness of residents involved. There is a lack of comparative study on residents’ preceptions of green retrofit in China, which is of great concern to the government. Therefore, this study investigates residents’ housing conditions and their perceptions of a green retrofit, based on the feedbacks from 9936 questionnaires which are collected from urban and rural residents throughout China. The Chi-squared test is employed to identify the key influencing factors, including demographic and housing characteristics. The results show that more than 90% of the respondents are willing to adopt retrofit, and installing a zoned temperature control system of individual rooms is a generally acceptable measure. The retrofit subsidy is a topic of high concern, and the respondents are more likely to undertake unified free retrofit, compared with separate retrofit supported by a partial subsidy. Besides, household income, city of residence, housing type and housing problems will cause significant differences in residents’ perceptions. After evaluating the retrofit potential of different resident groups, some suggestions are proposed for policymakers. The findings from this study can help develop differentiated strategies for residents, to promote green retrofit of existing residential buildings in China.
      Citation: Energy & Environment
      PubDate: 2021-02-28T04:25:36Z
      DOI: 10.1177/0958305X21998043
       
  • A review on modern control applications in wind energy conversion system

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      Authors: Shrabani Sahu, Sasmita Behera
      Abstract: Energy & Environment, Ahead of Print.
      To meet the energy demand, over and above to build a clean pollution-free environment, wind energy is playing an incredible role. The development in the field of wind power generation is rising speedily. Operation and maintenance of the nonlinear wind energy conversion system (WECS) with stochastic wind input are pivoted on the control techniques used for the overall system. Many research works are undergoing which are based on various control schemes for different parts of WECS. Thus, this paper presents a review of advanced modern control strategies utilized in different parts of WECS with two popular types of grid-connected generators to achieve the desired power level and fault-free operation developed in the last 15 years. The review paper intends to provide a suitable reference for further research in the field of wind energy to have a bird’s eye view from the tabulated information and presentation.
      Citation: Energy & Environment
      PubDate: 2021-02-25T05:21:05Z
      DOI: 10.1177/0958305X21995929
       
  • Price and subsidy under uncertainty: Real-option approach to optimal
           investment decisions on energy storage with solar PV

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      Authors: Jingyu Qu, Wooyoung Jeon
      Abstract: Energy & Environment, Ahead of Print.
      Renewable generation sources still have not achieved economic validity in many countries including Korea, and require subsidies to support the transition to a low-carbon economy. An initial Feed-In Tariff (FIT) was adopted to support the deployment of renewable energy in Korea until 2011 and then was switched to the Renewable Portfolio Standard (RPS) to implement more market-oriented mechanisms. However, high volatilities in electricity prices and subsidies under the RPS scheme have weakened investment incentives. In this study we estimate how the multiple price volatilities under the RPS scheme affect the optimal investment decisions of energy storage projects, whose importance is increasing rapidly because they can mitigate the variability and uncertainty of solar and wind generation in the power system. We applied mathematical analysis based on real-option methods to estimate the optimal trigger price for investment in energy-storage projects with and without multiple price volatilities. We found that the optimal trigger price of subsidy called the Renewable Energy Certificate (REC) under multiple price volatilities is 10.5% higher than that under no price volatilities. If the volatility of the REC price gets doubled, the project requires a 26.6% higher optimal investment price to justify the investment against the increased risk. In the end, we propose an auction scheme that has the advantage of both RPS and FIT in order to minimize the financial burden of the subsidy program by eliminating subsidy volatility and find the minimum willingness-to-accept price for investors.
      Citation: Energy & Environment
      PubDate: 2021-02-16T04:46:58Z
      DOI: 10.1177/0958305X21992291
       
  • Integrating lean design and eco-design to improve product design: From
           literature review to an operational framework

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      Authors: Noureddine Dahmani, Amine Belhadi, Khalid Benhida, Said Elfezazi, Fatima Ezahra Touriki, Yassine Azougagh
      Abstract: Energy & Environment, Ahead of Print.
      Lean manufacturing accomplishments have led researchers and practitioners to consider extending lean to different engineering enterprise parts, including product and process development. However, in the early phases of product development, it is important to both reduce costs and improve a product's sustainability performance. This paper develops a framework to guide designers and manufacturing managers to design products that better meet customer needs and requirements for sustainable products and services. To achieve this, a critical review of the existing literature in the field of lean design, and eco-design was conducted to fill the research gap and then develop the proposed methodological framework. The integration aimed to create synergies to extend the integration benefits and promote rational use of resources and time to create value for customers by eliminating waste and unnecessary actions in the product development process. The main objective is to ensure the development of products with minimal negative impacts on the natural environment. To our knowledge, this is the first time in the literature that an integrated framework is bringing together lean design and eco-design principles, practices, guidelines, drivers, barriers, and success factors. The framework can potentially serve product designers, manufacturing engineers, sales/marketing personnel, in fact, anyone who has a vested interest in designing environmentally friendly products.
      Citation: Energy & Environment
      PubDate: 2021-02-15T04:37:22Z
      DOI: 10.1177/0958305X21993481
       
  • Nanobiotechnology: Nature-inspired silver nanoparticles towards green
           synthesis

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      Authors: Nur Syakirah Rabiha Rosman, Noor Aniza Harun, Izwandy Idris, Wan Iryani Wan Ismail
      Abstract: Energy & Environment, Ahead of Print.
      The emergence of technology to produce nanoparticles (1 nm – 100 nm in size) has drawn significant researchers’ interests. Nanoparticles can boost the antimicrobial, catalytic, optical, and electrical conductivity properties, which cannot be achieved by their corresponding bulk. Among other noble metal nanoparticles, silver nanoparticles (AgNPs) have attained a special emphasis in the industry due to their superior physical, chemical, and biological properties, closely linked to their shapes, sizes, and morphologies. Proper knowledge of these NPs is essential to maximise the potential of biosynthesised AgNPs in various applications while mitigating risks to humans and the environment. This paper aims to critically review the global consumption of AgNPs and compare the AgNPs synthesis between conventional methods (physical and chemical) and current trend method (biological). Related work, advantages, and drawbacks are also highlighted. Pertinently, this review extensively discusses the current application of AgNPs in various fields. Lastly, the challenges and prospects of biosynthesised AgNPs, including application safety, oxidation, and stability, commercialisation, and sustainability of resources towards a green environment, were discussed.
      Citation: Energy & Environment
      PubDate: 2021-02-12T06:09:21Z
      DOI: 10.1177/0958305X21989883
       
  • The environmental health and energy efficiency in China: A network
           slacks-based measure

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      Authors: Xiang Chen, Xuping Zhang, Xin Wu, Ching-Cheng Lu
      Abstract: Energy & Environment, Ahead of Print.
      The importance of afforested area in environmental protection was emphasized in the 12th Five Year Period. Therefore, we first synthetically assess the afforested efficiency by non-oriented Network SBM model. The overall process is divided into two stages, and PM2.5, NOx, and SO2 are viewed as the linkage between two stages. Moreover, the afforested area is used as the final output in the second stage. According to the empirical results, the energy efficiency is higher than the afforested efficiency, and the low overall efficiency mainly due to the bad performance of afforested efficiency. The average afforested efficiency score was less than 0.42 in these five years, indicating that although the average afforestation area increased gradually, the afforestation efficiency did not improve significantly. Most provinces should take effective measures to control the emissions of PM2.5, NOx, and SO2 and gradually improve the afforested area.
      Citation: Energy & Environment
      PubDate: 2021-02-01T05:52:56Z
      DOI: 10.1177/0958305X21991482
       
  • A review of challenges from increasing renewable generation in the Indian
           Power Sector: Way forward for Electricity (Amendment) Bill 2020

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      Authors: Ramit Debnath, Vibhor Mittal, Abhinav Jindal
      Abstract: Energy & Environment, Ahead of Print.
      About 70% of India’s current energy mix comprises of coal, and the increase in generation from renewable (RE) sources is affecting the health of the power system. We investigated this effect through the lens of asset utilisation, cost and the social disruption caused by accelerating RE into the Indian Power System. Our review-driven analysis revealed that increasing RE generation is pushing the coal plants to operate in low-loading conditions, causing heightened wear and tear of the plant as they are not suitable for flexible operation. The novel analysis of social disruption due to market parity between RE and coal-based generation presented a holistic view of the political economy of Indian Power System. We found that transition from coal to RE may have extended socio-political ramifications that can potentially disrupt the national economy at an unprecedented scale. Policy implications outlined by our study for the draft Electricity (Amendment) Bill 2020 include scoping a socio-technical framework which supports just energy transition through better financial support mechanisms for flexible operation of coal plants. Focusing on clean-up over shut-down of coal plants and facilitating investments in battery storage technologies and cross-border electricity trade as RE and conventional fuel reach market parity.
      Citation: Energy & Environment
      PubDate: 2021-01-25T05:00:47Z
      DOI: 10.1177/0958305X20986246
       
  • Searching for sustainable electricity generation: The possibility of
           substituting coal and natural gas with clean energy

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      Authors: Mufutau Opeyemi Bello, Sakiru Adebola Solarin
      Abstract: Energy & Environment, Ahead of Print.
      It is now a common consensus that there is a need to lessen the consumption of fossil fuels as they are the main cause of greenhouse gases. Electricity is one of the chief determinants of greenhouse gases emission as its generation is dominated by fossil fuels. Thus, it is imperative to decarbonize the electric power sector. The main objective of this work is, therefore, to examine the potentials to switch from fossil fuels to clean energy which comprises of nuclear power and the various renewable energy sources of solar energy, hydropower, wind energy, biofuels, and geothermal. Due to the unsuitability of the ordinary least squares (OLS) procedure in the face of severe multicollinearity, the ridge regression procedure was adopted to obtain the parameter estimates using the U.S. annual electricity sector data for the period 1985 to 2018. The results show that substantial substitution exists between clean energy and the fossil fuels of coal and natural gas in the U.S. electricity sector. The results also underscore the importance of energy resource in the process of economic growth and development of U.S. To fully harness the potentials of clean energy, the study recommends increased investment in each of the components of clean energy. This should be complemented with various policy instruments such as provisions of tax credits and feed-in tariffs for clean energy and imposition of tax on carbon consumption.
      Citation: Energy & Environment
      PubDate: 2021-01-19T06:07:48Z
      DOI: 10.1177/0958305X20985253
       
  • The impacts of red mud dosing on methane production and reduction of CO2:
           Activity of granules and formation

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      Authors: Anwar Ahmad, Fatima Shahitha
      Abstract: Energy & Environment, Ahead of Print.
      Experiments were conducted to investigate the effect of red mud (RM) dosing on granular sludge formation, biogas production and carbon dioxide reduction from palm oil mill effluent (POME) digestion. The results show that dosing RM adversely affected sludge granulation due to the formation of precipitates and hydrolyzates with poor settleability. However, at the optimal dosage (4.5 g RM/L), it could benefit granules formation and stability by improving the in extracellular polymeric substances and biogas production rate was 87.9 l g-VSadded/d at 4.5:30 mixing ratio. The ratio of 0.5:80–2.5:50 g-VS did not affect methane production and the highest methane yield average 79.9 l/g-VS added for RM:POME of 4.5:30, 14.5 higher respective to that of POME alone only. A CO2 reduction of 89.6% was obtained at RM of 4.5:30 (r = 0.998). The chemical oxygen demand (COD) removal was 87% obtained at 30 g COD/l and 4.5:30 g-VS with growth of sp. Methanosarcina. The process evaluation was found model cone best fitted and actual production of CH4. The evidence by low root mean square prediction error (RMSPE) showed high correlation difference (Dif. %) with predicted value and actual values. Analyses were evaluated that the POME degradation with RM utilization, substantially enhanced the hydrolysis rate (khyd), lag phase time h (λ) and methane production rate (Rm) of mixing ratio of RM:POME. Furthermore, the system showed solid reduction with the increased production of methane.
      Citation: Energy & Environment
      PubDate: 2021-01-14T06:29:59Z
      DOI: 10.1177/0958305X20986891
       
  • Hydrothermal synthesis of biocompatible nitrogen doped graphene quantum
           dots

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      Authors: Wan Ibtisam Wan Omar, Chin Fhong Soon, Mohd Khairul Ahmad, Masaru Shimomura
      Abstract: Energy & Environment, Ahead of Print.
      Nitrogen-doped graphene quantum dots (N-GQDs) are promising biocompatible nanomaterial which has received much attention for biological application. However, the effect of the engineered electronic structure of N-GQDs to the fluorescence of GQDs applied for bio-imaging is still under debate. In this study, N-GQDs were synthesized by a facile one-step hydrothermal method for 10 hours at 180°C and theoretical calculation of electronic structure using density functional theory (DFT) by GAUSSIAN 09, were compared. Single to multilayer of N-GQDs with the particle size of 3.2 nm in average were obtained from hydrothermal synthesis. The optical properties of N-GQDs emitted green photoluminescence (PL) at 525 nm (2.36 eV) with PL excitation (PLE) at 367 nm (3.38 eV). From DFT calculation, the optoelectronic properties of GQDs from HOMO to LUMO differ between edge functionalization and graphitic nitrogen doping. Furthermore, cells cytotoxity showed that N-GQDs possess non-toxic property, and the cells were presented with high viability. In summary, by comparing experimental and theoretical calculations, the electronic properties of N-GQDs could enhance their reactivity in photo-electronics for biological application.
      Citation: Energy & Environment
      PubDate: 2021-01-11T12:14:17Z
      DOI: 10.1177/0958305X20984112
       
  • A comparative assessment on the effect of 1-propanol and 1-hexanol as
           oxygenated additive with diesel/biodiesel blends on single cylinder diesel
           engine characteristics

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      Authors: Mohanraj Jayapal, Kannan G Radhakrishnan
      Abstract: Energy & Environment, Ahead of Print.
      Recovery of energy from waste is appealing as it meets the energy demand and minimize the problems associated with waste management. Biodiesel derived from waste cooking oil was used in this study along with 1-propanol and 1-hexanol to make a comparative assessment of the alcohol addition on different diesel engine characteristics. Experimental trials were carried out by utilizing two ternary blends with 20% by volume of higher alcohols (propanol & hexanol), 30% by volume of biodiesel and 50% by volume of diesel. Later, the results were compared with binary blend of 50% by volume of diesel and 50% by volume of biodiesel (D50B50), pure diesel (D100) and biodiesel (B100). Results divulge that ignition delay period got longer for both Pr20 blend and HX20 blend which resulted in a 2% and 1% increase in peak cylinder pressure and 26% and 15% increase in peak heat release rate respectively against D50B50 blend operation. In comparison with the binary blend, the engine brake thermal efficiency improved by 3% and deteriorated by 2% against hexanol and propanol blend respectively. The NOx emission aggravated with ternary blends, nearly 8% higher NOx emission was observed for propanol blend when compared to hexanol blend. Both smoke opacity and carbon monoxide emission reduced, while unburnt hydrocarbon emission was on the higher side with the introduction of alcohol. It is concluded from the observations that the HX20 blend was found to be optimal in terms of improved engine performance and emission characteristics.
      Citation: Energy & Environment
      PubDate: 2021-01-11T12:14:17Z
      DOI: 10.1177/0958305X20985618
       
  • Effect of fuel injection pressure and EGR techniques on various engine
           performance and emission characteristics on a CRDI diesel engine when run
           with linseed oil methyl ester

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      Authors: Manish Kumar, Varun Kumar Singh, Abhishek Sharma, Naushad Ahmad Ansari, Raghvendra Gautam, Yashvir Singh
      Abstract: Energy & Environment, Ahead of Print.
      Nowadays, owing to the reduction in petroleum supplies due to the growing oil demand, the search for alternate fuels has intensified. However, as alternate fuel choice grows, checking whether alternative fuels are suitable for use in engines has become time-consuming and expensive. Therefore, the usage of Linseed oil methyl ester (linseed biodiesel) in the common rail direct injection (CRDI) diesel engine was optimized for a smaller number of trials in this research. Response surface methodology (RSM) was employed for optimization. Input variables were chosen for LOME content in the blend, fuel injection pressure (FIP), exhaust gas recirculation (EGR) rates, and engine load while output parameters were selected for like indicated power (IP), indicated thermal efficiency (η(I)), indicated mean effective pressure (IMEP), hydrocarbon (HC), and NOx (Oxide of Nitrogen).The model layout employed in the analysis is focused on the matrix of the CCRD (central composite rotating design). The optimal input variables configuration is estimated at 5.45% LOME blend, 57.77 MPa FIP, 6.50% EGR, and 6.909 kg engine load leading to better efficiency together with reduced emissions. The optimized output of the engine at this input configurations are as IP 4.878 kW, IMEP 0.5886 MPa, indicated thermal efficiency 48.36%, HC 23.43 ppm vol., and NOx 533.15 ppm vol. Testing and optimum output response results are measured at acceptable input parameters and are considered to be within an acceptable error range. The findings of this analysis have shown that RSM is an appropriate technique for optimizing CRDI diesel engines.
      Citation: Energy & Environment
      PubDate: 2021-01-08T04:52:39Z
      DOI: 10.1177/0958305X20983477
       
 
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